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                <span>⭐</span> 星空探索
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            <p class="subtitle">发现宇宙的无限奥秘</p>
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                <li><a href="#" class="nav-item active"><span>🏠</span>主页</a></li>
                <li><a href="solar-system.html" class="nav-item"><span>🌞</span>太阳系</a></li>
                <li><a href="#" class="nav-item"><span>🌟</span>恒星</a></li>
                <li><a href="#" class="nav-item"><span>🌌</span>星系</a></li>
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                    <h2>欢迎来到宇宙课堂</h2>
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                <p class="highlight-text">探索138亿年的宇宙演化史</p>
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                <div class="card-badge">🔥 最新发现</div>
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                    <h3>韦伯望远镜观测到远古星系</h3>
                    <p class="news-excerpt">最新观测数据显示距离地球135亿光年的新生星系...</p>
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